13-year-old Harvey – whose father is ex-footballer Dwight Yorke – is blind and suffers from Prader Willi Syndrome, a condition that means that he is unable to stop eating as he never feels full up. He also suffers from autism and various related learning and behavioural difficulties.

Katie has often spoken of the challenges that having a disabled son brings, but has always shared the love she has for Harvey, and all her children.

Richard Lane, head of campaigns at disability charity Scope, told Metro.co.uk: ‘We hope those responsible are ashamed of themselves for bullying a young disabled person.

‘Nobody should be abused simply because of who they are. We wouldn’t tolerate this abuse on our streets or in our schools and we shouldn’t tolerate it online. As a society we need to get better at accepting difference.’